BLORPS for Mac
On the Mac App Store, as part of BLORPS.
BLORPS for Mac catches the blorps you flick from your iPhone.
Get it
On your Mac, open the App Store and search for BLORPS.
Pair your iPhone
BLORPS lives in your Mac's menu bar. Click it to show a pairing code, then on your iPhone open BLORPS, go to Settings > Flick to Mac, tap Pair with Mac, and scan that code.